diff --git a/server/mailserver/mail/mailmgr.go b/server/mailserver/mail/mailmgr.go
index f263db07..282c8f1e 100644
--- a/server/mailserver/mail/mailmgr.go
+++ b/server/mailserver/mail/mailmgr.go
@@ -132,7 +132,21 @@ func (this *mailMgr) caMarkMail(hum common.Player, c *gin.Context) {
 }
 
 func (this *mailMgr) caGetUnreadMailCnt(hum common.Player, c *gin.Context) {
-
+	rspObj := struct {
+		ErrCode int32 `json:"errcode"`
+		ErrMsg  string `json:"errmsg"`
+		UnreadMailCnt int32 `json:"unread_mail_cnt"`
+	}{}
+	this.traversePlayerMail(
+		hum,
+		func (m *mail) bool {
+			if m.isValid(hum) {
+				rspObj.UnreadMailCnt++
+				return false
+			}
+			return true
+		})
+	c.JSON(200, rspObj)
 }
 
 func (this *mailMgr) caGetAttachment(hum common.Player, c *gin.Context) {